Biraha madax adkaadeen. Warar aasaasi ah oo ku saabsan tungsten.

Biraha madax adkaadeen - guudmar

Guud ahaan, hadalka ah "Biraha madax adkaadeen" waxa loo fahmi doonaa in ay kuwani yihiin macdanaha in ay leeyihiin heerkul ah barafku aad u sarreeya, Gaadho 4000 ° C. Molybdenum, tantalum, tungsten, niobium iyo rhenium - Biraha aasaasiga ah madax adkaadeen. Sidoo kale liiska waxaa lagu dari karaa, iyo kuwa kale - chromium, vanadium, osmium, hafnium, iyo macdanaha zirconium, heerkulka xaabo uu gaadho 2123 ° C.

Biraha madax adkaadeen yihiin oo xiiso leh guryaha ay. Sidaas darteed, tusaale ahaan, tilmaamayaasha molybdenum iyo qalbi engegnaantooda tungsten awood isticmaalka Biraha, kuwaas oo loogu talagalay daaweynta kulaylka qalabkan hoos vacuum. Products of qaar ka mid ah macdanaha madax adkaadeen sameeyey waxay leeyihiin sifooyin u gaar ah, tus, filaments tungsten hayo heerkulka buuxieyey in 3073 ° C.

Laakiin iska caabin ah ee biraha madax adkaadeen loo saarin karaa in khasaaraha ay ugu weyn. Contact la ogsijiin si weyn u saamaysaa on sifooyinka kaamerada of Biraha madax adkaadeen. Tani waa sababta isticmaalka Biraha ee group this - jawi halkaas oo ay la gebi ahaanba go'doonsan karaa hawada.

Tungsten - saleysan Biraha madax adkaadeen in metallurgy

Tungsten waa mid ka mid ah macdanaha ugu adkaadeen. barta barafku ka mid ah tungsten uu ka badan yahay inta kale, tungsten - biraha culus, waxaa macquul ah in ay soo jiidan threads wanaagsan, waxaa sidoo kale si fiican u weldable. Tungsten waa bir dhif ah, ay ka kooban tahay in qolof ah gaadho oo kaliya 0,0055%, waxaa lagama helin spectrum qoraxda iyo ma joogo aaso ah. Laakiin ay caan waa ineysan si biraha Biraha yar oo dhif ah.

Isticmaalka tungsten

tungsten macdan ah loo isticmaalo soo saarta daah buuxieyey, kuwaasi oo loo isticmaalo in qalabka iftiiminta sida element kuleylka ah - in Foornooyinka vacuum iska caabin ah. The sare cufnaanta ee tungsten ogolaanaya isticmaalka biraha sida miisaan for projectiles kala duwan. Sida koronto tungsten loo isticmaalo inta lagu jiro alxanka TIG. In ka Alloys adag ee carbide tungsten waxaa loo isticmaalaa sida filler.

Tungsten sida molybdenum, iyo tantalum waxaa loo isticmaalaa sida caadiga ah ee Alloys, kuwaasi oo loo isticmaalo in qaybo ka mid ah meel technology nuclear. Awoodda in ay u adkeysan kul aad u sarreeya - ujeedada ugu weyn ee kaas oo Alloys kuwaas oo la abuuray.